Composition for hardening steel and similar metals.



ZACHBIAH TAYLOR CLARK, OF PCIR'ELfs-Jlfi), OREGON,

COMPOSITION FOR HARDENING STEEL AND SIMILAR METALS.

No Drawing.

To all LU/LONL it may concern:

Be it known that-I, Zacnnmu TAYLoR (Tnuut. a citizen of the United States, and a resident of Portland, in the county of Multnoinah and State of Oregon. have invented a new and Improved Composition for Hardening Steel and Similar Metals, of which the following is a full, clear, and exact description.

My invention relates to a composition in liquid form for tempering and toughening steel, iron, and similar met als. The mixture utilized for the hardening results from the inter-mixing of the following ingredients in substantially the following proportions: Linseed oil, +75 gallons; copper sulfate, six ounces; common salt, five pounds; unslaked lime, two pounds; Zinc, two ounces; oxid of iron, four ounces. The solid ingredients are thoroughly mixed.

Specification of Letters Patent.

Patented Jerri.

Application filed January 17. 1917. Serial No. 142,904.

The metal to be tempered is heated to the desired temperature and then immersed, While in the hot state, in the solution for it few seconds, the mixture acting almost in stzintaneously on the metal in such a manner as to temper and toughen Without check ing or warping the metal, thereby alloroling a uniform temper of the desired degree without trouble or mistake of the operator.

I claim:

A composition for tempering steel. and similar metals, which results from the znirzineot' the following ingredients, copper sulfate conunon salt, unslnked lime, Zinc, oxid of iron, in proportions substantially as specified, added to linseed oil, also in proportions as specified.

menemii TAYLOR creme 

